fix-for-huge_page_size.patch

diff --git a/src/backend/port/sysv_shmem.c b/src/backend/port/sysv_shmem.c
index 2e3886cf9fe..8bb31698bd0 100644
--- a/src/backend/port/sysv_shmem.c
+++ b/src/backend/port/sysv_shmem.c
@@ -618,6 +618,13 @@ CreateAnonymousSegment(Size *size)
 
 		GetHugePageSize(&hugepagesize, &huge_mmap_flags);
 
+		if (hugepagesize == 0)
+			ereport(ERROR,
+				(errcode(ERRCODE_OUT_OF_MEMORY),
+				 errmsg("Cannot alocate %d bytes of memory", hugepagesize),
+				 errhint("It is necessary to reduce the amount of the configuration parameter \'huge_page_size\' (currently huge_page_size %d kB)", 
+					huge_page_size)));
+
 		if (allocsize % hugepagesize != 0)
 			allocsize = add_size(allocsize, hugepagesize - (allocsize % hugepagesize));